Dredge.



S. D. WAYSMANJ DREDGB APPLICATION FILED 0C1. 31. ms.

Patented Aug. '21, 1917.

msvms,

3 SHEET SHEE T l.

Nam

pgmiifi V,

EA/TOR SamueLD. Msysman W/TNESSES MW ATTORNEYS S. D. WAYSMAN.

DREDGE.

APPLICATION HLED OCT. 31, I916.

Patented Aug. 21,1917.

3 SHEETS-SHEET 2- VEIWOR 0/ WITNESSES v ATTORNEYS s. n. WAYSMANQ DREDGE.

APPLICATION FILED UCT.31,19I6.

Patented Aug. 21, 1917.

3 SH'EETSSHEE F INVENTOI? Samuel D. Waysmcm WITNESSES ATTORNEYS .of Fig.1; a

V DREDGE.

Specification of Letters Patent. Patentgfl A g, 21 191% Application filed October 31, 1916. Serial No. 128,691.

To all whom it may concern:

vBe it known that I, SAMUEL D. WAYsMAN a citizen of the United States of America, and a resident of Nome, in the Territory of Alaska, have invented certain new and useful Improvementsin Dredges, of which the following is a specification. 1

This invention relates to dredging, with particular reference to such operations in thereclamation of precious metals from the earth, especially in sand, gravel, and the like inthe beds of streams where gold or, other placer minerals have been deposited by the action of water, and the main object is to provide such a dredge which has a wide range of operationin each position; which may be moved fro'm one position to another; whichconcentrates the materials dredged; and which amalgamates the placer minerals with a suitable medium and thus separates the same from the concentrates; a further object is to provide means for positively anchoring the dredging means in desired positions; a further objectis toprovidemeans foradjustably moving said dredging means rver a considerable'area in any position of the support therefor; and further objects are to'provide such devices which. are simple in construction, positive in result, of very great capacity, well adapted to the purposes for which they arezintended, andwhich may be moved over sections of tracks laid in front thereof and taken up to the rear thereof.

1 The invention is fully described in the f0llowing specification, of which the accompanying drawings form a part, in which the separate parts are deslgnated by. the same reference characters in each of the views, and in wh ch:-

Figure 1 is a plan view ofa present preferred form ofthe invention, with the housing broken away j Fig. 2 is an elevation of the operative side thereof;'. h I v Fig, 3 is a section taken on the line 3-3 Fig. 4 is a section taken on the line H of Fig.1; and Fig. 5 is, a reduced side view of a trolley supp ort' for my endless conveyer.

In the drawingsforming a partof this application isshown a platform 5, which may be mounted upon wheels 6 moving along rails 7 if desired, arranged along the bank 8 of a stream, or in any other desired place, and a housing 9 is illustrated upon said platform.

At one end of said platform is mast moving said trolley, and a supplemental ca-' ble 19 being provided for a reason to be explained, said cables being led to drums 20 and 21, respectively, of said winch.

Upon this side of the platform, and at one end thereof, is an outrigger 22 having a revolving post 23 at the outer end thereof serving as a support for a frame 24 pivoted thereto at 25, said frame having a sprocketwheel 26 at its end adjacent the post 23, and a similar sprocket-wheel 27 at its outer end, and upon which is arranged an endless conveyer 28 having a plurality of buckets 29 thereon; the outer end of said conveyer frame is vertically movable upon its pivot 25 and is supported by means of the boom 17 and trolley 17*; the outer end of the frame may thus be vertically adjusted, with respect to said boom, by means of the cable 19, and it will be seen that the outer end of said conveyer is thereby capable of a considerable degree of adjustment over the bed of the ing capable of individual actuation, by

suitable clutches not shown, by means of a belt 35 actuated by means, of a pulley 36 on .a shaft 37 provided with a power pulley 38 driven by means of a belt 39 connected with an engine 10, Also mounted on said shaft is a pulley 41 having a belt-42 thereon connected with a rotary pump 43 having an intake pipe 44 connected therewith provided with a perforated end 45, and having also an exhaust pipe 46 connected therewith and the end of which is arranged directly over "a receptacle 47 upon the post 23, as shown in Fig. 3, and said receptacle is also adapted to receive the materials dredged by the con- ,veyer buckets through a spout, if desired, or

from the buckets 29, as illustrated.

The sprocket-wheel 26 is connected to a shaft 48 which is rotated by means of a pulley 49 thereon and a belt 50 connected with an engine 51, said shaft 48 also carrying a pulley 52 connected with an amalgamator 58 by means of a belt 54, said amalgamator being of any desired type.

The receptacle 47 is provided with a spout 55 arranged directly over the enlarged end 56 of a trough 57, said end being soenlarged to accommodate the same to the swinging movement of the conveyor and the rotary movement of thesupporting post23, and said trou 'h is downwardly inclined away from said spout and is provided with an opening 58 in its'bottom adjacent its outer end, said opening 58 being directly over a conduit 59 leading to the amalgamator 53,

whereas the free, open, end of said trough 57 discharges into a duct 60, Fig. 4, downwardly inclined toward a supplemental duct 61 and which, in turn, empties into a drain 62 leading from the amalgamator, Fig. 3, and which carries the tailings therefrom to a suitable dumping place.

In operation, the sand, gravel, ores, or the like containing the precious metal or metals is dredged by the conveyer buckets 29 and carried to the receptacle 47 where water from the pipe 46 is mixed therewith, and the mixture flows down the trough 57, the heavier metals sinking to the bottom in such flow and through the opening 58 to the amalgamator by means of the conduit 59, a proportion of the baser materials being, of course, mixed therewith, and constituting the concentrates, and the water and lighter materials in the materials originally dredged passes to the ducts 60 and 61 and, thence, by means of the drain 62, dumped or discharged from the apparatus. As shown, the lower end of the duct 60 is provided with a corrugated bottom 63 for the purpose of catching any of the heavier placer materials, for reclamation, and which may also be transferred to the amalgamator and, after amalgamation, the amalgam may be removed and retorted to distil the quicksilver or other medium and thus leave the precious metal or metals.

It will thus be seen that the apparatus may be moved to desired positions, as an entirety, and the dredging means proper moved over a considerable area in such posicopies of this patent may e o t ine f extended transversely of said platform, a

revoluble post at the outer end thereof, a frame pivoted on said post to move in a vertical plane, an endless conveyer carried by said -frame,-means for adjustably support ing the outer end of said frame, and means for carrying the dredged material to desired points for concentration.

2. A device of the class described, comprising a wheeled platform, an outrigger eX- tended transversely of said platform, a post at the outer end thereof, a frame pivoted on said post to move in a vertical and in a hori zontal plane, an endless conveyercarried by saidframe, an adjustably supported boom over" the outer end of said frame, a trolley adjustable on said boom supporting the outer 'end of said frame, and means for carrying the dredged material to desired points for concentration I 3. A. device of the class described, comprising a wheeled platform movable along the shore of a stream, an outrigger extended therefrom over the stream, a pile vertically adjustable at the outer end of said outrigger for anchoring and for supporting said out rigger, a rotatable post on the outer end of said platform, a framepivoted on said post, an endless conveyer on said frame, means for adjustably supporting the outer end of said frame, and means for carrying dredged material to desired points for concentration.

4. In a device of the class described, a platform having a laterally projecting member, a frame carried by said member and mounted to swing in a vertical and a horizontal plane,an endless conveyer mounted in the frame, a'pivoted boom carried by the platform and projecting over the said frame, a movable member on the boom, a connection between the movable member and frame, means for movin said member, and means for swinging the 00m.

5. In a deviceof the class described, a wheeled platform having a laterally extending member, an adjustable endless conveyer carried by said member, a vertically'sliding pile mounted in the ,outerend of the-member, and means for raising and lowering the pile.

In testimony whereof I have signed my nameto this specification in thepresence of two subscribing witnesses V SAMUEL DICKENS YVAYSMAN. Witnesses: I Y s HUGH O, FARRELL, F. R. GowDEN.

five cents each, by addressing the commissioner 9f @ateuts,

Washington, D. 0. 

